Is it just me or does anyone else feel like Gambit's suddenly getting a new series has something to do with Thief of Thieves becoming such a success? I almost feel like that comic might have made Marvel realize how stupid they were being wasting Gambit the way they were. But I accept that I could be wrong.

Imo i think it was a last minute decision.

Gambit isn't getting any sort of build up in any books, compare that to Ms Marvel and Hawkeye who are in a bunch of books, even Ms Marvel has more of a role in Legacy then Gambit.